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- Xref: sparky comp.protocols.nfs:2268 comp.protocols.tcp-ip.ibmpc:5113
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!slc6!trier
- From: trier@slc6.ins.cwru.edu (Stephen C. Trier)
- Newsgroups: comp.protocols.nfs,comp.protocols.tcp-ip.ibmpc
- Subject: Re: ?floating license server al la FrameMaker
- Date: 8 Sep 1992 18:29:12 GMT
- Organization: Case Western Reserve University, Cleveland, OH (USA)
- Lines: 25
- Message-ID: <18irdoINNq03@usenet.INS.CWRU.Edu>
- References: <0105015D.cv41e4@phngnc.Phonogenic.COM> <18fp5aINNnsd@seven-up.East.Sun.COM>
- NNTP-Posting-Host: slc6.ins.cwru.edu
-
- In article <18fp5aINNnsd@seven-up.East.Sun.COM> geoff@tyger.Eng.Sun.COM (Geoff Arnold @ Sun BOS - R.H. coast near the top) writes:
- >(Obviously you can prevent people from copying an application executable
- >by marking it as execute-only, but this won't work with applications which
- >require read access to the .EXE to, e.g., load overlays.)
-
- People willing to hack a bit can fix even this. The trick is to figure out
- where the core of the program ends and where the overlays begin, then split
- them into two files. Write a shim TSR to redirect usage from one to the
- other, and you'll be able to mark the core and the TSR execute-only. The
- overlays are copyable, but they are hopefully of little use without the
- program core.
-
- This doesn't work with Windows applications, and my little tools that do it
- only work on about 75% of the software I've tried them on, but they do help.
-
- BTW, we tried Saber Meter and were quite unhappy with it. We had much
- better luck with Setlimit from San Diego Mesa College. Unfortunately,
- Setlimit won't work with NFS (as the original question required), since
- it depends on NetWare semaphores.
-
- --
- "Beware of programmers who Stephen Trier
- carry screwdrivers." Network Services Engineering, IRIS/INS/Telecom
- Leonard Brandwein Case Western Reserve University
- trier@ins.cwru.edu
-